Dell P2423D/P2723D Monitor User’s Guide Monitor Model: P2423D/P2723D Regulatory Model: P2423Dc/P2723Dc
NOTE: A NOTE indicates important information that helps you make better use of your computer. CAUTION: A CAUTION indicates potential damage to hardware or loss of data if instructions are not followed. WARNING: A WARNING indicates a potential for property damage, personal injury, or death. Copyright © 2022 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.
Contents Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . 6 About your monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package contents . . . . . . . . . . . . . . . . . . . . . . 7 Product features . . . . . . . . . . . . . . . . . . . . . . 9 Identifying parts and controls . . . . . . . . . . . . . . . 10 Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connecting your monitor . . . . . . . . . . . . . . . . . 32 Connecting the DisplayPort and USB cable . . . . . . . . . . . . 32 Connecting the HDMI cable (optional) . . . . . . . . . . . . . . . 33 Organizing cables . . . . . . . . . . . . . . . . . . . . . 34 Securing your monitor using Kensington lock (optional) 35 Removing the monitor stand . . . . . . . . . . . . . . . 36 VESA wall mounting (optional) . . . . . .
Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Built-in diagnostics . . . . . . . . . . . . . . . . . . . . 64 Common problems . . . . . . . . . . . . . . . . . . . . . 66 Universal Serial Bus (USB) specific problems . . . . . . . 71 Regulatory information . . . . . . . . . . . . . . . . . . . . . . 73 FCC notices (U.S.
Safety instructions Use the following safety guidelines to protect your monitor from potential damage and to ensure your personal safety. Unless otherwise noted, each procedure included in this document assumes that you have read the safety information that shipped with your monitor. NOTE: Before using the monitor, read the safety information that is shipped with your monitor and printed on the product. Keep the documentation at a secure location for future reference.
About your monitor Package contents The following table provides the list of components that are shipped with your monitor. If any component is missing, contact Dell. For more information, see Contacting Dell. NOTE: Some items may be optional and may not ship with your monitor. Some features may not be available in certain countries.
DisplayPort to DisplayPort cable (1.8 meters) Super speed USB 5 Gbps (USB 3.
Product features The Dell P2423D/P2723D monitor has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD), and LED backlight. The monitor features include: • • • • • • • • • • • • • • • • • P2423D: 60.45 cm (23.8 in.) viewable area display (measured diagonally). P2723D: 68.47 cm (27 in.) viewable area display (measured diagonally). 2560 x 1440 resolution, with full-screen support for lower resolutions. Color gamut of 99% sRGB (typical). Digital connectivity with DisplayPort and HDMI.
Identifying parts and controls Front view 1 Label 1 Description Power LED indicator Solid white light indicates that the monitor is turned on and functioning normally. Blinking white light indicates that the monitor is in Standby Mode.
Back view 1 2 DELL P2423D Flat Panel Monitor /Monitor Plano Panel /Moniteur écran plat /液晶顯示器 Model No. /Modelo /N°de modelo /型號/모델명/モデル番号: P2423Dc 정격입력/Entrada de energía:100-240V 50/60Hz,1.5A 輸入電源:交流電壓100-240伏特,1.5安培,50/60赫茲 Удельная мощность рабочего режима - XXXX Вт/см² Consumo de energía en operación: XXX Wh Потребляемая мощность изделием в режиме ожидания - 0,XX Вт Потребляемая мощность изделием в выключенном режиме - 0,XX Вт The equipment must be connected to an earthed mains socket-outlet.
Bottom view 1 2 3 4 5 6 7 7 Bottom view without monitor stand Label Description Use 1 Security lock slot Secure your monitor using a security lock (based on Kensington (purchased separately) to prevent unauthorized Security Slot) movement of your monitor. 2 Power connector Connect the power cable (shipped with your monitor). 3 Stand lock To lock the stand to the monitor using a M3 x 6 mm screw (screw not included).
Monitor specifications Model P2423D P2723D Screen type Active matrix-TFT LCD Panel type In-Plane Switching Technology Aspect ratio 16:9 Viewable image Diagonal 604.50 mm (23.80 in.) 684.70 mm (26.96 in.) Horizontal, Active Area 526.85 mm (20.74 in.) 596.74 mm (23.49 in.) Vertical, Active Area 296.35 mm (11.67 in.) 335.66 mm (13.21 in.) Area 156132.00 mm2 (242.01 in.2) 200301.75 mm2 (310.47 in.2) Native resolution and refresh rate 2560 x 1440 at 60 Hz Pixel pitch 0.2058 mm x 0.
Connectivity 1 x HDMI 1.4 (HDCP 1.4) 1 x DisplayPort 1.2 (HDCP 1.4) 1 x USB 3.2 Gen1 upstream 4 x SuperSpeed USB 5 Gbps (USB 3.2 Gen1) downstream Bezel width (edge of monitor to active area) Top 5.42 mm 7.37 mm Left/Right 5.48 mm 7.43 mm Bottom 16.72 mm 17.
Preset display modes Display Mode Horizontal Frequency (kHz) Vertical Frequency (Hz) IBM, 720 x 400 VESA, 640 x 480 VESA, 640 x 480 VESA, 800 x 600 VESA, 800 x 600 VESA, 1024 x 768 VESA, 1024 x 768 VESA, 1152 x 864 VESA, 1280 x 768 VESA, 1280 x 1024 VESA, 1280 x 1024 VESA, 1600 x 1200 VESA, 1680 x 1050 CTA, 1920 x 1080 VESA, 1920 x 1200 VESA, 2048 x 1080 VESA, 2560 x 1440 31.50 31.50 37.50 37.90 46.90 48.40 60.00 67.50 47.80 64.00 79.90 75.00 65.30 67.50 74.60 66.60 88.80 70.10 59.90 75.00 60.30 75.
Electrical specifications Model P2423D P2723D Video input signals •HDMI 1.4, 600 mV for each differential line, 100 ohm input impedance per differential pair •DisplayPort 1.2, 600 mV for each differential line, 100 ohm input impedance per differential pair AC input voltage/ frequency/current 100 VAC to 240 VAC / 50 Hz or 60 Hz ± 3 Hz / 1.5 A (typical) Inrush current 120 V: 30 A (max.) at 0°C (cold start) 240 V: 60 A (max.) at 0°C (cold start) Power consumption 1 0.3 W (Off mode)1 0.
NOTE: This monitor is ENERGY STAR certified. This product qualifies for ENERGY STAR in the factory default settings which can be restored by “Factory Reset” function in the OSD menu. Changing the factory default settings or enabling other features may increase power consumption that could exceed the ENERGY STAR specified limit.
Physical characteristics Model P2423D P2723D Signal cable type • Digital: DisplayPort, 20 pins • Digital: HDMI, 19 pins (cable not included) • Universal Serial Bus: USB, 9 pins NOTE: Dell monitors are designed to work optimally with the video cables that are shipped with your monitor.
Weight without stand 3.44 kg (7.58 lb) assembly (For wall mount or VESA mount considerations no cables) 4.54 kg (10.01 lb) Weight of stand assembly 1.63 kg (3.59 lb) 1.84 kg (4.06 lb) Front-frame gloss Black frame 2-4 gloss units Environmental characteristics Model P2423D P2723D Compliant Standards • ENERGY STAR certified monitor. • EPEAT registered where applicable. EPEAT registration varies by country. See www.epeat.net for registration status by country. • RoHS-compliant.
Pin assignments DisplayPort connector Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 20-pin side of the connected signal cable ML3 (n) GND ML3 (p) ML2 (n) GND ML2 (p) ML1 (n) GND ML1 (p) ML0 (n) GND ML0 (p) GND GND AUX (p) GND AUX (n) Hot Plug Detect Re-PWR +3.
HDMI connector Pin number 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 19-pin side of the connected signal cable TMDS DATA 2+ TMDS DATA 2 SHIELD TMDS DATA 2TMDS DATA 1+ TMDS DATA 1 SHIELD TMDS DATA 1TMDS DATA 0+ TMDS DATA 0 SHIELD TMDS DATA 0TMDS CLOCK+ TMDS CLOCK SHIELD TMDS CLOCKCEC Reserved (N.C.
Universal Serial Bus (USB) interface This section gives you information about the USB ports that are available on the monitor. SuperSpeed USB 5 Gbps (USB 3.2 Gen1) Transfer speed Data rate Maximum power supported (each port) SuperSpeed 5 Gbps 4.5 W High speed 480 Mbps 4.5 W Full speed 12 Mbps 4.5 W USB 3.
USB downstream connector Pin number 9-pin side of the connector 1 VCC 2 D- 3 D+ 4 GND 5 SSRX- 6 SSRX+ 7 GND 8 SSTX- 9 SSTX+ NOTE: SuperSpeed USB 5 Gbps (USB 3.2 Gen1) functionality requires a SuperSpeed USB 5 Gbps (USB 3.2 Gen1)-capable computer. NOTE: The USB ports on the monitor work only when the monitor is turned On or in power save mode. If you turn Off the monitor and then turn it On, the attached peripherals may take a few seconds to resume normal functionality.
Plug and play capability You can install the monitor in any Plug and Play-compatible system. The monitor automatically provides the computer system with its Extended Display Identification Data (EDID) using Display Data Channel (DDC) protocols so the system can configure itself and optimize the monitor settings. Most monitor installations are automatic, you can select different settings if desired. For more information about changing the monitor settings, see Operating your monitor.
• Ensure that the monitor screen is at eye level or slightly lower when you are sitting in front of the monitor. • Adjust the tilt of the monitor, its contrast, and brightness settings. • Adjust the ambient lighting around you (such as overhead lights, desk lamps, and the curtains or blinds on nearby windows) to minimize reflections and glare on the monitor screen. • Use a chair that provides good lower-back support.
Handling and moving your display To ensure that the monitor is handled safely when lifting or moving it, observe the following guidelines: • • • • Before moving or lifting the monitor, turn off your computer and the monitor. Disconnect all cables from the monitor. Place the monitor in the original box with the original packing materials. Hold the bottom edge and the side of the monitor firmly without applying excessive pressure when lifting or moving the monitor.
Maintenance guidelines Cleaning your monitor WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet. CAUTION: Read and follow the Safety instructions before cleaning the monitor. WARNING: Before cleaning the monitor, unplug the monitor power cable from the electrical outlet.
NOTE: Monitor damage due to improper cleaning methods and the use of benzene, thinner, ammonia, abrasive cleaners, alcohol, compressed air, detergent of any kind will lead to a Customer Induced Damage (CID). CID is not covered under the standard Dell warranty. • If you notice white powder when you unpack your monitor, wipe it off with a cloth. • Handle your monitor with care as a dark-colored monitor may get scratched and show white scuff marks more than a light-colored monitor.
Setting up the monitor Attaching the stand NOTE: The stand is not installed at the factory when shipped. NOTE: The following instructions are applicable only for the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the setup instructions that were included with the stand. To attach the monitor stand: 1. Follow the instructions on the flaps of carton to remove the stand from the top cushion that secures it. 2.
6. Lift the cover, as shown, to access the VESA area for stand assembly. NOTE: Before attaching the stand assembly to the display, ensure that the front plate flap is opened to allow space for assembly. 7. Attach the stand assembly to the display. a. Fit the two tabs on the upper part of the stand to the groove on the back of the display. b. Press the stand down till it snaps into place.
8. Hold the stand riser and lift the monitor carefully, then place it on a flat surface. NOTE: Lift the monitor carefully to prevent it from slipping or falling. 9. Remove the cover from the monitor.
Connecting your monitor WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. NOTE: Dell monitors are designed to work optimally with Dell supplied inbox cables. Dell does not guarantee the video quality and performance if non-Dell cables are used. NOTE: Route the cables through the cable-management slot before connecting them. NOTE: Do not connect all cables to the computer at the same time. NOTE: The images are for the purpose of illustration only.
Connecting the HDMI cable (optional) HDMI HDMI 2.0 HDMI 5. Connect the power cables from your computer and monitor into a wall outlet.
Organizing cables Use the cable-management slot to route the cables connected to your monitor. HDMI 2.0 6. Turn on the Monitor.
Securing your monitor using Kensington lock (optional) The security lock slot is located at the bottom of the monitor. (see Security lock slot). Secure your monitor to a table using the Kensington security lock. For more information on using the Kensington lock (sold separately), see the documentation that is shipped with the lock. NOTE: The image is for the purpose of illustration only. The appearance of the lock may vary.
Removing the monitor stand NOTE: To prevent scratches on the LCD screen when removing the stand, ensure that the monitor is placed on a soft surface and handle it carefully. NOTE: The following steps are specifically for removing the stand that is shipped with your monitor. If you are removing a stand that you purchased from any other source, follow the setup instructions that are included with the stand. To remove the stand: 1. Place the monitor on a soft cloth or cushion. 2.
VESA wall mounting (optional) DELL DELL P2423D Flat Panel Monitor /Monitor Plano Panel /Moniteur écran plat /液晶顯示器 Model No. /Modelo /N°de modelo /型號/모델명/モデル番号: P2423Dc 정격입력/Entrada de energía:100-240V 50/60Hz,1.5A 輸入電源:交流電壓100-240伏特,1.
Operating your monitor Power on the monitor Press the Power button to turn On the monitor. Using the joystick control Use the joystick control on the rear of the monitor to make On-Screen Display (OSD) adjustments. 1. Press the joystick to launch the Menu Launcher. 2. Move the joystick up/down/left/right to toggle between options. 3. Press the joystick again to confirm the selection.
Using the On-Screen Display (OSD) menu Accessing the Menu Launcher When you toggle or press the joystick, the Menu Launcher appears to let you access the OSD main menu and shortcut functions. To select a function, move the joystick.
Using the navigation keys When the OSD main menu is active, move the joystick to configure the settings, following the navigation keys displayed below the OSD. Joystick 1 Up 2 Down 3 Left 4 Right 5 Description Use the Up direction to adjust (increase ranges) items in the OSD menu. Use the Down direction to adjust (decrease ranges) items in the OSD menu. For all first level in the Menu list, Left arrow will exit/ close the OSD menu.
Accessing the OSD menu NOTE: If you change the settings and then either proceed to another menu or exit the OSD menu, the monitor automatically saves those changes. The changes are also saved if you change the settings and then wait for the OSD menu to disappear. 1. Select the icon to launch the OSD and display the main menu. 2X Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others 75% 75% Exit 2. Press the and directions to move between the setting options.
Icon Menu and Submenus Brightness/ Contrast Description Use this menu to activate Brightness/Contrast adjustment. 2X Monitor Brightness/Contrast Input Source Color Display Menu Personalize Others 75% 75% Exit Brightness Contrast Brightness adjusts the luminance of the backlight. Press the direction to increase the brightness and press the direction to decrease the brightness (min. 0 / max. 100). Adjust the Brightness first, and then adjust the Contrast only if further adjustment is necessary.
Input Source Use the Input Source menu to select between the different video signals that may be connected to your monitor. 2X Monitor Brightness/Contrast DP Input Source HDMI Color Auto Select On Display Rename Inputs DP Menu Reset Input Source Personalize Others Exit DP Select DP input when you are using the DisplayPort HDMI connector. Push to select the DP input source. Select HDMI input when you are using the HDMI connector. Push to select the HDMI input source.
Color Use Color to adjust the color setting mode.
Preset Modes Allows you to choose from a list of preset color modes. • Standard: Loads the monitor's default color settings. This is the default preset mode. • Movie: Loads color settings ideal for movies. • Game: Loads color settings ideal for most gaming applications. • Warm: Increases the color temperature. The screen appears warmer with a red/yellow tint. • Cool: Decreases the color temperature. The screen appears cooler with a blue tint.
Input Color Format Allows you to set the video input mode to: • RGB: Select this option if your monitor is connected to a computer or a media player that supports RGB output. • YCbCr: Select this option if your media player supports only YCbCr output. 2X Monitor Brightness/Contrast Preset Modes Input Source Input Color Format RGB Color Reset Color YCbCr Display Menu Personalize Others Exit Hue This feature can shift the color of the video image to green or purple.
Reset Color Display Resets your monitor’s color settings to the factory default. Use the display to adjust image. 2X Monitor Brightness/Contrast Aspect Ratio 16 : 9 Input Source Sharpness 50 Color Response Time Normal Display Reset Display Menu Personalize Others Exit Aspect Ratio Sharpness Adjusts the image ratio to 16:9, 4:3 or 5:4. This feature can make the image look sharper or softer. Use or to adjust the sharpness from 0 to 100.
Menu Select this option to adjust the settings of the OSD, such as, the languages of the OSD, the amount of time the menu remains on screen and so on.
Personalize Select this option to adjust the settings of the personalization.
Others Select this option to adjust the OSD settings, such as the DDC/CI, LCD conditioning, and so on. 2X Monitor Brightness/Contrast Display Info Select Input Source DDC/CI On Color LCD Conditioning Off Display Firmware xxxxxx Menu Service Tag xxxxxxx Personalize Self-Diagnostic Select Others Reset Others Factory Reset Display Info DDC/CI ENERGY STAR® Exit Displays the monitor’s current settings.
LCD Conditioning Firmware Service Tag Helps reduce minor cases of image retention. Depending on the degree of image retention, the program may take some time to run. To start LCD conditioning, select on. Displays the firmware version of your monitor. Display the service tag number of the display. The Service Tag is a unique alphanumeric identifier that allows Dell to identify the product specifications and access warranty information.
Menu and Power button lock Prevents users to access or change OSD menu settings on the display. By default, the Menu and Power button lock setting is disabled. To access the lock menu, press and hold the Up or Down or Left or Right direction for four seconds. A lock menu appears at the bottom right corner of the display. NOTE: The lock menu can be accessed using this method when the Menu and Power buttons are in unlocked state.
Select option: There are three lock options. 1 Menu Menu Buttons Description When Menu Buttons is selected, the OSD menu settings cannot be changed. All buttons are locked except Power button. 2 Power Button When Power Button is selected, the display cannot be turned off using the Power button. 3 Menu + Power Buttons When Menu + Power Buttons is selected, the OSD menu settings cannot be changed and the Power button is locked.
Unlocking the OSD menu and Power buttons： 1. Press and hold the Up or Down or Left or Right direction for four seconds. The unlock menu appears. 2. Select the unlock icon to unlock the buttons on the display. OSD warning messages When the monitor does not support a particular resolution mode, the following message is displayed: 2560x1440, This means that the monitor cannot synchronize with the signal that it is receiving from the computer.
Are you sure you want to lock the Menu Buttons? To unlock the Buttons, refer to the User’s Guide. Yes No When the monitor goes into power-save mode, the following message appears: Going into Standby mode... If either HDMI or DisplayPort cable is not connected, a floating dialog box as shown below appears. The monitor will enter Standby Mode after 4 minutes if left at this state. No HDMI Cable The display will go into Standby mode in 4 minutes. www.dell.
The Power Warning Message box below shall apply to Brightness functions for the first time when user adjust the Brightness level above the default level. Adjusting to this value will increase power consumption above the default level.
When you select ‘Yes’ to reset to default settings, the following message will appear: 2X Monitor Select ‘Yes’ to enable the following function(s): · USB Charging Yes No When ‘Yes’ is selected, power consumption will increase. When ‘No’ is selected, it will comply with ENERGY STAR requirements. Individual settings of the functions can be changed in the Menu. See Troubleshooting for more information.
Setting the maximum resolution NOTE: The steps may vary slightly depending on the version of Windows you have. To set the maximum resolution for the monitor: In Windows 8.1: 1. For Windows 8.1, select the Desktop tile to switch toclassic desktop. 2. Right-click on the desktop and click Screen Resolution. 3. If you have more than one monitor connected, ensure that you select P2423D/ P2723D. 4. Click the Screen Resolution dropdown list and select 2560 x 1440. 5. Click OK. In Windows 10 and Windows 11: 1.
Using the tilt, swivel, and vertical extension NOTE: The following instructions are applicable only for attaching the stand that was shipped with your monitor. If you are attaching a stand that you purchased from any other source, follow the set up instructions that were included with the stand. Tilt, swivel With the stand attached to the monitor, you can tilt and swivel the monitor for the most comfortable viewing angle. NOTE: The stand is detached when the monitor is shipped from the factory.
Rotating the monitor Before you rotate the monitor, your monitor should be fully vertically extended (Vertical Extension) and fully tilted up to avoid hitting the bottom edge of the monitor.
Rotate counterclockwise NOTE: To use the Display Rotation function (Landscape versus Portrait view) with your Dell computer, you require an updated graphics driver that is not included with this monitor. To download the graphics driver, go to www.dell.com/support and see the Download section for Video Drivers for latest driver updates. NOTE: When in the Portrait View Mode, you may experience performance degradation in graphic-intensive applications (3D Gaming and etc.).
Adjusting the rotation display settings of your system After you have rotated your monitor, you need to complete the procedure below to adjust the Rotation Display Settings of your system. NOTE: If you are using the monitor with a non-Dell computer, you need to go to the graphics driver website or your computer manufacturer website for information on rotating the 'contents' on your display. To adjust the Rotation Display Settings: 1. Right-click on the desktop and click Properties. 2.
Troubleshooting WARNING: Before you begin any of the procedures in this section, follow the Safety instructions. Self-Test Your monitor provides a self-test feature that allows you to check if your monitor is functioning properly. If your monitor and computer are properly connected but the monitor screen remains dark, run the monitor self-test by performing the following steps: 1. Turn off both your computer and the monitor. 2. Disconnect all video cables from the monitor.
5. Turn Off your monitor and reconnect the video cable; then turn On both your computer and the monitor. If your monitor screen remains blank after you use the previous procedure, check your video controller and computer, because your monitor is functioning properly. Built-in diagnostics Your monitor has a built-in diagnostic tool that helps you determine if any screen abnormality you experience is an inherent problem with your monitor, or with your computer and video card.
4. When initiated, a gray screen apppears. Inspect the screen for abnormalities. 5. Toggle the Joystick. The color of the screen changes to red. Inspect the screen for abnormalities. 6. Repeat step 5 to inspect the display in green, blue, black, white and text screens. 7. The test is complete when the text screen appears. To exit, toggle the Joystick again. If you do not detect any screen abnormalities upon using the BID tool, the monitor is functioning properly. Please check the video card and computer.
Common problems The following table contains general information about common monitor problems you might encounter and the possible solutions: Common Symptoms What you experience No Video/Power No picture LED off No Video/Power No picture or no LED on brightness Poor Focus Picture is fuzzy, blurry, or ghosting Shaky/Jittery Video Wavy picture or fine movement 66 │ Troubleshooting Possible Solutions Ensure that the video cable connecting the monitor and the computer is properly connected and secur
Missing Pixels Stuck-on Pixels Brightness Problems Geometric Distortion Horizontal/ Vertical Lines LCD screen has spots • Cycle power On-Off. • Pixel that is permanently Off is a natural defect that can occur in LCD technology. • For more information on Dell Monitor Quality and Pixel Policy, see Dell Support site at: www.dell.com/pixelguidelines. LCD screen has • Cycle power On-Off. bright spots • Pixel that is permanently off is a natural defect that can occur in LCD technology.
Synchronization Problems Screen is scrambled or appears torn Safety Related Issues Visible signs of smoke or sparks Intermittent Problems Monitor malfunctions on & off Missing Color Picture missing color Wrong Color Picture color not good 68 │ Troubleshooting • Reset the monitor to Factory Settings (Factory Reset). • Perform monitor self-test feature check to determine if the scrambled screen appears in self-test mode. • Check for bent or broken pins in the video cable connector.
Image retention from a static image left on the monitor for a long period of time Faint shadow from • Set the screen to turn off after a few the static image minutes of screen idle time. These can displayed appears be adjusted in Windows Power Options on the screen or Mac Energy Saver setting. • Alternatively, use a dynamically changing screensaver.
No Input Signal No picture, the LED light is when user controls white are pressed • Check the signal source. Ensure the computer is not in Standby Mode by moving the mouse or pressing any key on the keyboard. • Check if the video cable is plugged in properly. Disconnect and reconnect the video cable if necessary. • Reset the computer or video player.
Universal Serial Bus (USB) specific problems Common symptoms What you experience USB interface is not working USB peripherals are not working SuperSpeed USB 5 Gbps (USB 3.2 Gen1) interface is slow Possible Solutions • Check that your monitor is turned On. • Reconnect the upstream cable to your computer. • Reconnect the USB peripherals (downstream connector). • Turn off the monitor and turn it on again. • Reboot the computer.
Wireless USB peripherals stop working when a USB 3.2 device is plugged in Wireless USB peripherals responding slowly or only working as the distance between itself and its receiver decreases 72 │ Regulatory information • Increase the distance between the USB 3.2 peripherals and the wireless USB receiver. • Position your wireless USB receiver as close as possible to the wireless USB peripherals. • Use a USB-extender cable to position the wireless USB receiver as far away as possible from the USB 3.
Regulatory information FCC notices (U.S. Only) and other regulatory information For FCC notices and other regulatory information, see the regulatory compliance website located at www.dell.com/regulatory_compliance. EU product database for energy label and product information sheet P2423D: https://eprel.ec.europa.eu/qr/1057427 P2723D: https://eprel.ec.europa.eu/qr/1057546 Contacting Dell To contact Dell for sales, technical support, or customer service issues, see www. dell.
